Hieracium angustum Lindeb.

Sennikov, Alexander, 2025, The collection-based inventory and spatial analysis of Hieracium s. str. (Asteraceae) in Finland, Biodiversity Data Journal 13, pp. e 154676-e 154676 : e154676-

Hieracium angustum Lindeb.

Native status

Native. Forest margins, riversides.

Distribution

Finland: Om, Lks; Norway, Sweden ( Samuelsson 1954), northern European Russia ( Sennikov 1999 a).

Diagnosis

Stems 40–60 cm tall. Basal leaves withering at anthesis; cauline leaves 10–15, densely spaced, narrowly oblong to slightly panduriform, base narrowly subrotund to auriculate, apex triangular, with a few small teeth, rigid, dark green, glabrous, but with few stellate hairs above, sessile. Phyllaries oblong, with rather obtuse apex, 9–10 mm long, dark grey-green, with or without solitary simple hairs ca. 1 mm long, with rare to sparse glandular hairs 0.2–0.4 mm long along the central line and rare to sparse dense stellate hairs, with broad glabrous margins, apex with indistinct short ciliae. Synflorescence branches usually without simple and glandular hairs, with stellate hairs. Styles with black papillae. Ligules glabrous.